| Variable | Frequency | Percentage (%) |
| Prepregnancy complications | ||
| None | 42 | 70.00 |
| Previous miscarriages | 12 | 20.00 |
| PCOS | 2 | 3.33 |
| Disc prolapse | 1 | 1.67 |
| Diabetes | 1 | 1.67 |
| Previous IUGR | 1 | 1.67 |
| Hyperprolactinaemia | 1 | 1.67 |
| Total | 60 | 100 |